Change order of Filters

I posted earlier and was told to add this code to my theme’s functions.php file. Then without checking with me to see if this worked, you marked my thread as complete. The code you provide causes a critical error on my site. I made sure to copy it exactly. What is going on here?

add_filter(‘tc_caf_filter_order_by’, ‘tc_caf_function_filter_order_by’, 10);

function tc_caf_function_filter_order_by($terms) {
sort($terms);
return $terms;
}